Home / 78,901.14-118,352.76-26,310.66

Finding the Fourth Proportional to 78,901.14, 118,352.76 and 26,310.66

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Solution

The fourth proportional to 78,901.14, 118,352.76 and 26,310.66 is: 39,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,901.14 : 118,352.76 = 26,310.66 : x
  2. Step 2: Convert to fraction form
    78,901.14/118,352.76 = 26,310.66/x
  3. Step 3: Cross multiply
    78,901.14x = 118,352.76 × 26,310.66
  4. Step 4: Simplify right side
    78,901.14x = 3,113,939,228.42
  5. Step 5: Solve for x
    x = 3,113,939,228.42/78,901.14
  6. Step 6: Final answer
    x = 39,466.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.